Sheet-feeding mechanism for printing-presses.



C. M. KNEPPLER. SHEET FEEDING MECHANISM FOR PRINTING PRESSES.

i APPLICATION FILED 0GT.12. 1910.

1,041,302, Patented Oct. 15, 1912.

6 SHEETS-SHEET 1.

ffy-W C. M. KNBPPLER.

SHEET EEEDING MEGHANISM EOR ERINTING PRESSES. APPLICATION FILED ocT.1z,1.910.

l ,041, 302;. Patented` Oct. 15, 19:12.

6 SHEETS-SHEET 2..

BrMik-M QQLA rilililiulililiil. E

i: Illnlllllllllll Ml C. M. KNEPPLER. SHEET SEEDING MEGHANISM FORPRINTING PRESSES.

APPLICATION FILED 001.212, 1910.

Patented Oct. 15, 1912.

WIr/v W? e.. 7 l f By A TTUR/VEY G. M. KNEPPLER. SHEET EEEDING MEGEANISMEOE PRINTING PRESSES.

APPLICATION FILBD'OGT. 12, 1910. A

Patented Oct. 15, 1912.

6 SHEETSHSHBBT 4.

Qta'

fg. y M

QM/fw. Y

G. M. KNEPPLER.

SHEET FEBDING MBGHANISM POR PRINTINGPRESSES.

APPLIogTIoN FILED 00T. 12, 1910. f

Patented Oct. 15, 1912.

SHEETS-s112151 ATTo/m/Er l o. M. KNEPPLER. SHEET FBEDING MEOHANISM FORPRINTING' PRESSES' APPLICATION FILED 00T. 12I 1910.

1,041,302.l Patented 0ct.15,19 12.

6 SHEETS-SHEET 6.

AUD/MEV l CHARLES M. KNEPPLER, 0F NEW YORK, N. Y.

SHEET-FEDING MECHANISM FOR PRINTING-PRESSES.

antrace.

Specification of Letters Patent.

Patented Oct. i5, 1912.

Application'iled October 12,` 1910. Serial No. 586,768.

TocZZ wi'om it may concern:

Beit known that I, CHARLES M. KvNnr- PLER, a citizen of the UnitedStates, and a resident of New Yorlnborough of Brooklyn,

in the county of Kings 'and State of New York, have made and inventedcert-ain newand useful Improvements in Sheet-Feeding Mechanism rforPrinting-Presses, lof which the following is a specification.

My invention relates to sheet feeding mechanism for printing presses ofthe type designed to print upon separate and distinct sheets lOfpaper asdistinguished vfrom presses designed t'o-print upon a continuous web,the saine comprising devices whereby the separate sheets may beconveniently supplied to the press in comparatively small quantities forVcontinuous operation, or, as

analternative method, supplied in quanti- 2() ties of a definite numberof sheets for an edition of'predetermined size; devices for feedingl thesheets separately from the coll. lection ofl sheets above referred to tothe printing mechanism of the press; and devices for controlling thefeeding mechanism so that the separate sheets may be advanced vtoward.the printing mechanism unifornil and at a proper rate; all asillustrated in the accompanying drawings, described in the followingspecification, and particularly claimed in the concluding claims. r

In the drawings: vFigure 1 is a view showing my improve-il feedingmechanism as seen in side elevation; Fig. 2 Ais a view showing thesainefin plan; Fig. 3 is a view lshowing the saine in end elevation asseen from a position-to the right of Fig. l; Figpa is a view showing asection upon a vertical central plane extendii'ig longitudinally of myimproved feeding mechanism; Fig. 5,is a

view taken upon a transverse vertical planey indicated by the line 5-5Fig. 1 Ylooking toward the right as indicated by the arrow in saidfigure; Fig` 6 is an enlarged det-ail view showing a portiifof themechanism for advancing the sheets toward the printing mechanism; Fig. 7is an enlarged detail view corresponding with Fig. 6, but showing theparts in a different position; Fig. 8 is a similar view taken upon aplane indicated by the tine 8--8 Fig. 6; Fig. 9 is a `similar View of.the mechanism shown in Figs. right of such figures, certain of theparts.

v however, being omitted to better show the explain the mechanism shownin Fi chain 3 a clutch et beine' 7 7 (3 and 'C as scenfrom a position tothe'v gages. The upper end of the rod 17 larview serving to furtherillustrate and gs. (S, 't and Q; Fig. 11 is a view illustrating certainvmechanism for use when the method of storageof the sheets preparatoryto feeding them to the printing mechanism is to bechanged; and Figfl'i?is a view illustrating the elements shown in Fig. .l1 in a dill'erentposition. y

In the drawings, lis thefraineof the ina'-l chine and 2 is. the niaindriving shaft through which motion is transmitted to the variouselements ofiny improved feeding mechanism, said shaft u suitable meanses by means of the sprocket interposed between the driving means and theshaft 2 so that motion of the entire'feeding mechanism may be arrestedas will hereinafter appear.

5 is a supplemental frame secured tothe frame 1 by means -of bolts G,and which frame, upon the removal of the bolts (l may be moved to theleft and away from the `other portions of thc machine. The supplementalframe 5 has two shafts and S, extending transverse thereto, the forwardshaft 8 having as shown a single roll or drum 9 while the rear shaft 7has a plurality of pulleys 10 corresponding in the einbodi ment of'inyinvention shown, in diameter with the drum 9, `which .shaft and pulleysare preferably adjustable longitudinally of the frame-5 as shown. Aplurality of feeding belts extend about theA drum 9 and pulleys 10, and12 are a plurality of idle rolls supported by shafts the ends of whichhave bearings in the side members of the supplemental frame 5, and thepurpose of which is to support the pile of paper resting upon the belts11. Thebelts 11 are driven-from the shaft 8 and drinn 9 in a series ofintermittent movements by mechanism as follows: 1 l

13 is a gear upon the shaftl 2, and lsl is a shaft driven by the gear i3through ay gear l5, which shaft has a cam 16 at its free end by means ofwhich cam reciproratonv niotion is transmitted to a connecting rofl 17,the lower ond o f which rod is bifurcated and continues as branchesuponeither sido of the shaft i-t whereby the lower end of the rod is guided.said rod having a rolter 18 at its lower end with which the eau. 1Genconelements to be explained; Fig. 10 is a simibeii'ig driven by aiiv',nected at 26 with. and operates an oscillating member 18carried by andcapableof rocking upon .the outer end of a short shaft 19 having abearing in the frame '1. ,5 20 is a ratchet wheel secured to and adaptedto drive the shaft 19 and 22 is a pawl' secured at 23 to the oscillatingmember 18, and having an extended tripping arm 24:,

which pawl rides over 'the teeth of the.y

16 ratchet wheel 120 when the oscillating mem ber 18 is moved in aclockwise direction referring to Figs.' 6 and7, 'and engages the teethand thus rotates the shaft 19 when the oscillating member is moved in a`reverse di 15 rectien. The shaft'19 has agear21 at its 'inner end whichengages with a gear Y 25,

lupon the'shaftS whereby ,as reciprocating motion is imparted-to theconnecting rod 17 the oscillating member .18 is operated Iand ,720intermittent movement imparted to the shaft that. the -sheets may notbe' advanced too,4 rapidly in which 'case two or morev sheets. might'befed .together to the printing mechanism, means are provided fordisengaging the pawl 22 from the ratchet wheel 20 to' thereby stop theshaft 19, although the oscil I latingl member 18'is continuouslyoperated lwhereby the step-by-step movement of the lbelts 11 isarrested, as follows: 27 `is a trip member loose upon thefend of 40. theshaft 19 and normally partaking ofthe e oscillating movements of theoscillating member 18, said trip member having a pin 28 which projectsthrough' a slot- 29 in the .oscillating memberand lies within a. notchor recess at 30 formed in the. tripping' armv 24 of the pawl 22.Normally, when the sheets are being advanced atv a'pro'per rate,

the pin 28 remains within-the recess 30` and i the trip member 27 andoscillating member e A.50A 18., move together, which condition isillustratedin Figf. If, however, the motion. of

the trip'member vis v'arrested theoscillating' i member 18 'andpawl 22will be carried for- `ward and, as the depression or recess 30 is.

V moved away from the pin 28, the trip arm -24`will 'be moved beneaththe pin and the pawl 22 thereby disengaged from the ratchet 20, whichaction 'will obviously arrest the motion of the shaft 19. This conditionis. rillustrated in Fig. 7 of. the drawing. V

'.The' means whereby motion of tlre trip member 27 is arrested is shown.as com- Vprising a shoulder 31'upon the trip member 27; anda dog 32adapted-to engage said 65 'shoulder as shown 'in Fig. 7 or to miss thesame as in Fig. 6. This'dog is carried by a rocking member 33 supportedfrom the frame of .themachine by a support 31h 35 is an oscillatingshaft and 36 is an arm oper` 'ati-vely connected with the rocking member3 3 by a .slidingvv connection at 37. 38 is a roller supported from anarm 39 upon the shaft 35,V which roller comes into contact with thesheets of paper; as they pass to the printing mechanism'- to control therate'at .which the sheets are advanced.` i.

v Referring now to Fig. `6, if there be but a Y single sheet, ora'number not greater than "is desirable, in position to'be engaged bythe roller38 asfit descends due to the oscillatory motion of the shaft35, the rocking member ,33. is .moved vsuiiicient. tocarry the dog 32into such a position that it may not engagey the shoulder 31', the tripmember 27'remains inoperative and the forward movement of the bands 11continues. lIf, however, there be an-excessive number .-of sheetsbeneath the roller38 as-it descends, as shown in Fig. 7, the rockingmember 33 is moved farther' and-the dog 32 is brought into a positionsuch thatit engages the shoulder 31 disen# gages the pawl 22 from 'theratchet 20., ,and arrests the forward movements of the bands 1/1 asabove explai Avfed'. Thisl positionofwthe Y' parts is'slhown'in Fig. 7.y

The" roller 38 partakes of a rising and- `falling movement as aboveexplained, it-being essential that the rollerbe out of contact'A. withthe paper at such. times' as the upper sheet Ais being ladvanced to`thek printing mechanism, to which end motion iscom- .'municatedto'theoscillating shaft 35' above referred. to from the shaft 14,40 being acam upon said shaft and'441` a connecting rod bifurcated. at its lowerlend vand vextending upon either'side of the shaft 14 and having aroller 42'witl1 which the cam 40 engages. The upper-1 end of the rod41is pivotally connected. with'an'a'rm 43 upon the shaft 35. .From theabove it-will be seen that the' roller. 110 .38..is lifted at eachrotation ofthe shaft 14, and the mechanism for yfeeding thesheets to the.printing mechanism,' the same vbeing shown at the right hand end ofFigs-1 land 4,is .so timed. that the sheets are fed to the printingmechanism while the roller 38 is beinglheldup and out of contact withthe Papel* Y In order that anew 'supply'of paper may' v be supplied tothe bands o r belts 11 when the.` 120 pile of sheets upon them isnearlyused up, Ii provide mechanism for lifting'the rearkpor-j tion of sheetsremaining upon the bands and supporting the same so that a new supply ofpaper may be placed directly upon the 125 bands beneath such sheets ashave not been fed to the printing mechanism, so that by the time the oldsheets have been fed to .the4 press the sheets of the new supply willhave been kadvanced into position to be grasped. 130

and fed to the printing mechanism, whereby a continuity of operationA ismaintained.

The preferred form of such mechanism is as follows: The referencenumerals44 refer to a plurality' of slats arranged between and parallelwith the belts 11 andthe forward ends of whichare connected witha,trans-` verse rod 45 the `ends-of which have bearings-in the sidemembers of the frame 5.

.'sliaft, 49 are cams The rear ends of the slats are free, and 46 arearms upon the under sides of the slats through which armsa rod 47passes, so that the entire `series of slats -may swing about the rod asa center thereby lifting thel rear portion of such sheets as may beunused free from the bands 11. 48 is a transverse at e'ther end thereof,and 50 are connecting'rojd ends of which are connected withthe ends ofthe rod 47 and the lower ends of which are bifurca-ted. so as to beguided by the shaft 48'. y 51- are rollers at the lower ends of theconnecting rods 50. 52 is a crank whereby the shaft 48 may-be operatedand the rear ends of the slats 44 lifted through the VKmechanism abovedescribed.

.by the frame 1 and operated by a connecting link or rod 57 the lowerendof which is connected with the end of a lever 58 pivoted at 59 tothel frame 5. The lever 58 is operated from the shaft 48 through a linkG0 the upper end of which is connected with said lever and the lower endof which is bifurcated and prcvidedwith a roller G1 which rides upon acam 62 upon the shaft 48. It will be observed that the cam (l2 isgreater in extent,'circumfcrentiaily, than the cam 49. v

From the premises it will he vobvious that as the handle 52 is turned ina cou'utcr-clockwise directionthe cam 4S) will tilt the slats 44 andraise the rear ends of thc sheets rcmaining upon the bands 11, and atthe same time the cam G2 will swing the supporting arms 53 downwardand'beneath the pile of papera vThe cam 49 being'shorter than thecam`6'2 the slats 44 as the handle 5:2 is further operated are presentlyreleased and return to their position between and parallel with thebelts 11, leaving the rear end ofthe pile of paper supported bythehook-shaped tsupporting membersl 53. A new supply of paper may now beplaced upon the belts 11 beneath the paper supported by the hooks s orlinks the upperl whereupon and by a continued move- I ment of the handle52 the supports 53 are permitted to return to their initial position andthe sheets of paper supported by them to descend and rest upon the newsupply,

after which and as the bands 11 are operated as aforesaid the new supplyof paper will be advanced beneath the sheets formerly upon the bandsandreach a position such that they may be fed to the press by the time theold supply of sheets has been used up. v

63 `is a table upon which the forward ends of the sheets rest and acrosswhich they are fed to the printing mechanism of the press.

When it is desired to feed from a single` pileof sheets of considerableheight the frame 5 and table are removed and the pile of sheets placedupon a vertically movable table 64, the same being adjust-able by meansof the screws 65 so as to bring the upper end of the pile to about thelevel of the mechanism for grasping thesheets and advancing them to theprinting mechanism. The screws (55 are driven by means of the transverseshaft pandbevel gears 67, G8 to raise the pile as s heets are fed fromthe top thereof, which shaft C6 is driven by 'means of a sprocket chain69 'extending about a sprocket wheel on the shaft G6 and another 71 uponthe shaft 19. n

From the above it will be seen that the oscillating memberv 18 drivesthe screws G5 .when paper is to be fedfrom a pile.l in a.

way similar to the way it drives the bands 11 when a continuous `feed isused, and it is obvious that 4the upper end of the pile of sheets uponcoming in contact with the roller 38 will arrest the movement of thesprocket wheel 71 and stop upward movement of the table G3 in the sameway as above disclosed when describing the operation of the bands 11.

Figs. 1G and 17 show means for counecting the sprocket wheel 70 with theshaft 5G when sheets are to be fed from a pile, or for disconnecting thewheel and the shaft when a continuous feed is to be used. The end of theshaft G6 is made square at 72 and a disk 7B havinga square hole isplaced thereupon said disk having projections 74 adapti ed to fit intorecesses formedin the hub of the sprocket whcelTO as best shown in Fig.16. which shows the parts in position 'such that the shaft is drivenfrom the sprocket, wheel through the disk 73. lf, however, the disk beremoved" and reversed in posi tion so that the projections 74 may not bein the recesses aforesaid, the shaft 66 will not be driven although thesprocket wheel will continue to move. 75 is a sleeve having a squaredportion 76 to receive an operating handle carried by the squared cud ofthe shaft 66 andwhich sleeve has recesses 7T to receive the projections74 when the disk isreversed in position the purpose of thel Isleevebeing to hold the disk in position upon the lend of the shaft 66.' 78 isa screw for holding they sleeve in place and for permit-- vting itsremoval and the reversal of-tlie disk as'abovc explained.

The reference character '79 designates a shaft the saine being drivenfrointhe main shaft ,2 through gears 13, 102, 103, 104, which shaft isshown having a series of rolls 80, although the shaft and rolls mayobviously be replaced by a single continuous roll, and 81 are supportscarried' by a transverse shaft S2. The supports have each a rotary disk831Which coperates with the rolls 80 to forward separate' sheets ofpaper4 toward the press; and cooperates-'also with certain mechanism forarresting the entire vfeedii'ig mechanism in case two -or more sheetsstartfor the press atthe saine time,

- vwhich stopping mechanism, however, forms cillated to raise the disks83 at such times as mechanism, whichA sheet feeding mechanism,

a sheet is to be advanced into position to be grasped between the rolls80 and disks 83 by means of an arm 106 upon the end ofthe .shaft 82 towhich the upper. end of a connecting rod 107 is` connected,-the lowerend of said rod being guided by the shaft 2 and having a roller 1.08with which a camv 109 upon the main shaft 2 engages.

K When my improved feeding device is in use, a pile'of sheetsof paperwill rest on the belts' 11 with'their forward ends lying upon the table63, and the sheets will he separated' from the pile by any suitablecombing mechanism, and moved from the top of the pile into position tobe grasped by the rolls 80 Vand disks S3 and advanced to the mechanismAwhich conveys them to the press, this being accomplished by'v any`suitable sheet feeding however, is not shown as it forms no part ofsheinvention to which this-application reates. f

Having thus described and explained the operation thereof, I claim anddesire to secure by' Letters Patent:

1. In sheet feeding mechanism for printing presses, a support adapted toreceive a pile of sheets of paper; means for lifting the rear portion ofsaid pile 4of sheets from said support; and means for supporting therearportion of. `Said pilenof sheets in an elevated position'tothereby-permita new supply of sheets to be placed upon said support andlbeneath said first mentioned sheets. e 2. In a sheet feeding mechanismfor printing presses, a support adapted to receive a 'I ile of'sheets ofpaper; a series of slats connected with said support adjacent the `forvward endthereof; means for elevating the rear ends of said slats tothereby lift the rear portion of the -pile of sheets from said Isupport; and means for supporting the rear portion of said pile ofsheets in an elevated position to thereby permit al new supply of ysheets to be placed upon said support and beneath said first mentionedsheets.

3. In. a sheet feeding mechanism for printing presses, a support.adapted t-o re eive a pile of sheets of paper; a series of slL sconnected withsaid support .adjacent the forward end thereof; means forVelevating the rear ends of said slats to thereby lift the rear portionof the pile of sheetsv from saidsupport; means normally inactiveadapted.v

to support the rear portion v"said pile (of 'sheets in an elevatedposition, and means fer operating said elevating means and saidsupporting means to thereby raise therear portion of the pile of sheetsand ybring said supporting means in positonto support said sheets.

. 4. In a sheetfeeding mechanism for printing presses, a support`adapt-ed to receivea pile of sheets of paper; a series of slatsconnected with, said support adj acenf the forward end thereof and therear ends of which may be elevated to thereby lift. the rear portion oft-he sheets from said support;\means normally inactive adapted tosupport the rear portion of said pileof Y sheets in an elevatedposit-ion; a .slia'ft; a handle for operating said shaft; a cam uponsaid shaft; a connecting rodfoperated by said cam and `oprat-ivelyconnected with said slats; a second cam upon'said s'haft; and aconnecting rod operated by said sec-I; 11o

ond cam and operatively connected with said` supporting means. V v, 5.In a sheet feeding mechanism for print- 4ing presses, a support adaptedto receFG a pile of sheetsof paper a series `ofslats connected with saidsupportI adjacent the for- Ward end theTeO; arms upon the under sided.

a of said slats and by means of which the'rear ends and of the pile of4"sheets may be lifted from said support; meansnormal'ly inactiveadapted to support the rear portion of said pile of sheets inan'elevated position; shaft; a handle for operating said shaft; a

cam upon said shaft; a connect-ing rod operated bysaid cam andoperatively connected f with said arms; a second cam upon said shaft;and a connecting rod operated by said' cam and operatively connectedwith said supporting means.

6. In a sheet feeding 4mechanism for printing presses, a series of beltsadapted to re- B5 y move the pile toward the press; a series f ceive andsupport a pile of sheets of paper; means for driving said belts tothereby move the pile toward the press; means for lifting the rearyportion of said pile of sheets from said support; and means forsupporting the rear portion of said pile in an elevated posi- .tion tothereby permitI a new supply of sheets to be placed upon said belts andbeneath said rst mentioned sheets.

7. In a sheetl feeding mechanism for printing presses, a series of beltsadapted to receive a pile of sheets of paper; means for driving saidbelts to' thereby move the pile toward the press; a series of slatsarranged in alternation with said belts; a support for the-forward endsof said slats; means for elevating the rear endsof said slats to therebylift the rear portion of sheets from said belts; and means `forsupporting the rear portion of said pile of sheets in an elevatedposition yto thereby permit anew supply of sheets to be placed upon saidbelts and beneath said first mentioned sheets. Y

8. In a sheet feeding mechanism for printing presses, a series of beltsadapted to receive and support a pile of sheets of paper; means fordriving said belts to thereby move the pile toward the press; a seriesof slats arranged in alternation with said belts; a support for theforward ends of said slats;` means for elevating the rear ends of saidslats to thereby lift the rear portion of the pile of sheets from saidbelts; means normally inactive adapted to support the rear portion ofsaid pile of sheets in an elevated position; and means for operatingsaid elevating means and said supporting' 'means to thereby raise therear portion of the pile of sheets and bring said supporting meansin-position to support said sheets.

9. In a sheet feeding mechanism for printing presses, a series of beltsadapted to receive and support a pile of ysheets of paper; means fordriving said belts to thereby move the pile toward the press; a seriesof slats arranged in alternation with said belts; a support for theforward ends of said slats and the rearends of which may be elevated tothereby lift the rear portion of the sheet froin-said belts; meansnormally inactive adapted tosupport the rear portion of said pile 0fsheets in an elevated position; a shaft; a handle for operating saidshaft; a cam upon said shaft; a connecting rod operated by said cam andoper-,A atively connected with said slats; a second cam upon said shaft;and a Vconnecting rod operated by said second cam and operativelyconnected with said supporting means.

l0. In a sheet feeding mechanism for printing presses, a series of'beltsadapted to -receive and support a pile of sheets of aper; means fordriving said belts to theresaid slats; arms upon the un'der side ofsaid' slats and by means of which the rear ends thereof and of the pileof sheets may be lifted from said belts; means normally in,

active adapted to support the rear portion of said pile of she ts in anelevated position; a shaft; a'handle for operating said shaft; a camupon ,said shaft; a' connecting rod operated by said Cain andoperatively connected with saidV arms; a second camupoii said shaft; anda connecting rod operated by said second cam and operatively connectedwith said supporting means.

11. In a sheet feeding mechanism for printing presses, a series of beltsto receive and supporta pile of sheets of paper; means for drivingy'said belts te thereby move the pile toward the press; means forlifting the rear portion of said pile olf sheets fromsaid belts; meansfor supporting the-rear portion of said pile of sheets in an elevatedposition to thereby permit a new supply of sheets to be placed upon saidbelts and beneath said lirst. mentioned sheets; and means controlled bythe sheets as they pass to the press for interrupting the operation ofsaid belt driving mechanism.

l2. In a sheet feeding mechanism for -printing presses, a series ofbelts adapted to receiveand support a pile of sheets of paper; drivingmeans for said belts comprising an oscillating member, a pawl carried bysaid member, la ratchet driven by said pawl, a shaft driven by saidratchet,

vand gearing whereby said belts are driven fromk said shaft; Ya triplmember movable Vnormally in unison with said oscillating member andhaving means for engaging said pawl to thereby prevent said pawl fromengaging said ratchet and thus interrupt the motion of said belts; andmeans controlled by the sheets as they pass to the press for holdingsaid trip member stationary with reference to said oscillating member.

'13. In sheet feeding mechanism for print ingpresses, a movable supportadapted to receive a pile of sheets of paper; means for operating saidmovable support; said means comprising an oscillating member, a pawlcarried by said member, a ratchet driven by said pawl, a shaft driven bysaid ratchet, and gearingvwhereby said movable support is drivenfromsaidshaft; a trip member movable normally in `unison with saidoscillating member and having meansfor engaging said pawl to therebyprevent it from engaging said ratchet; and means adapted to engage theupper sheet of said pile `of sheets vfor holding said trip memberstationary with reference to said oscillating member.

14. in a sheet feeding mechanism for printing presses, a series of beltsadapted to receive and supporta pile of sheets of parocating member forholding said pawl out, v

per; means for drivingsaid belts'to thereby move the pile toward'thepress, the same 'com rising an oscillatin member a' awl carried thereby,a ratchetengaged by said pawl, a shaft drivenby said ratchet, andgearing whereby.. said belts are driven by said shaft; a reciprocatingmember adapted to contact with the sheets upon each of its successivedownward movements, and to be lifted from lthe sheets, as they pass tothe press; means for operating said reciprocating member; and meansdependent upon 'the extent of downward movement of said recipofengagement with said ratchet to thereby interrupt the operation of saidbelt driving means. Y

l5. In sheet feeding mechanism for print-V ing presses, a series ofbelts adapted to receive and support a pile of sheets of paper;

. means for driving said belts to thereby move the pile toward thepress, the same comprising an oscillating member a pawl carrier thereby,a" ratchet engaged by said pawl, a shaft driven by said ratchet,and'gearing whereby said belts are driven by said shaft; a trip memberpartaking of the movement of said oscillating member and having meansfor engaging said pawl to thereby prevent it from engaging said ratchet;a reciprocating member adapted to contact with and to be lifted fromthe'sheets as they pass to the press; means `for operating-saidreciprocating member; and means dependent upon the exte'nt of downwardmovement'of said reciprocating member for holding said trip memberstationary, relative to said oscillat- Copies of this patent :hay beobtaineipfor ing memberxwhereby the operation of said belt driving meansis arrested.

16. In a sheet feedingmeehanism 40 printing presses, a series of beltsIadapted to 4receive and supporta pile of sheets of paper; meansordriving said'belts to thereby move the pile toward :the press 'the samecom risinff'an oscillatin member a aWl carried thereby, a ratchetengaged bysaid pawl, a shaft driven by said ratchet, and

gearing whereby said belts are driven by said shaft; a tripmemberpartaking of the movement of said oscillating member' and' movement ofsaid reciprocating member,

whereby when saiddog is in position to engage the shoulder of saidvtrip4member the same is -held stationary with reference lto said oscillatingmember andtheoperation of said belt driving means arrested. Signed atNew York, boroughof Man'-V hattan, in the county ofNew York and State ofNew York, this 8th day of October, A, D.

CHARLES M. KNEPPLER. Witnesses:

. R. N. FLINT, y

A. V. WALSH.

nve. cents each, by addressing. .the Commissioner ef Patents,Washington, D. C. i

